Select youraccount photoin the upper-right corner of the screen.
SelectManage your Google Account.
SelectPersonal Infofrom the left menu pane.

Scroll down to theContact infosection.
choose the arrow icon to the right of your phone number.
When taken to a new page, pick the arrow icon again.

Select theEditicon, indicated by a pencil.
slide in your Google account password and selectNext.
Enter the new phone number, then chooseSelectto complete the process.

However, certain menus and icons are different.
launch the Gmail app and sign in to your account.
Tap themenubutton, represented by three horizontal lines.

Scroll to the bottom of the menu and selectSettings.
In theSettingsscreen, select yourGmail address.
In theGoogle Accountscreen, selectPersonal info.

In thePersonal Infoscreen, scroll down toContact infosection and opt for listed phone number.
grab the listed phone number again.
Select theEditicon, indicatedby a pencil.

put in your password to verify your identity, then tapNext.
Select theEditicon once more.
Change the phone number, then chooseSelectto complete the process.





